منابع مشابه
Neuromuscular choristoma of the internal auditory meatus.
Choristomas of the internal auditory meatus are exceedingly rare tumors. In most cases, neuromuscular choristomas have initially been misdiagnosed as vestibular schwannomas (VS). No known characteristics in the clinical presentation or in imaging exist distinguishing these tumors from VS, which are the most common tumors at this location [Smith et al.: AJNR Am J Neuroradiol 1997;18:327-329]. We...
متن کاملPrognostic significance of changes in the internal acoustic meatus caused by vestibular schwannoma.
The prognostic significance of the variety of changes in the internal auditory meatus (IAM) caused by vestibular schwannoma was retrospectively analyzed in 69 consecutive patients with vestibular schwannoma. Preoperative bone-window computed tomography was used to classify IAM changes into extensive destruction (17%), widening (46%), and normal IAM (36%). Extensive destruction (47 +/- 19 years)...
متن کاملInternal auditory meatus stenosis--case report.
Internal auditory meatus stenosis is defined as a loss of 3mm or more in the vertical diameter of the internal acoustic meatus, or even as a meatus smaller than 2mm. Inner ear abnormalities may occur in about 20% of the cases of patients who have sensorineural hearing loss (Figure 1). This loss may happen because of alterations in the VIII cranial nerve (vestibulococlear). In most cases, it hap...
متن کاملAngioleiomyoma of the internal auditory meatus: a rare occurrence in the internal auditory canal.
We describe a case of angioleiomyoma of the internal auditory meatus. A finding of this tumor at this site is very unusual. In fact, our review of the literature revealed that only 1 case has been previously reported. In our patient, the tumor was clinically and radiologically difficult to distinguish from an acoustic neuroma. It would be important to recognize this rare small tumor preoperativ...
متن کاملAnterior Inferior Cerebellar Arteries Juxtaposed with the Internal Acoustic Meatus and Their Relationship to the Cranial Nerve VII/VIII Complex
Vascular loops in the cerebellopontine angle (CPA) and their relationship to cranial nerves have been used to explain neurological symptoms. The anterior inferior cerebellar artery (AICA) has variable branches producing vascular loops that can compress the facial cranial nerve (CN) VII and vestibulocochlear (CN VIII) nerves. AICA compression of the facial-vestibulocochlear nerve complex can lea...
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ژورنال
عنوان ژورنال: International Journal of Morphology
سال: 2007
ISSN: 0717-9502
DOI: 10.4067/s0717-95022007000400029